Multiscale patterning of graphene oxide and reduced graphene oxide for flexible supercapacitors |
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Affiliation: | 1. University Hospitals Coventry & Warwickshire, Clifford Bridge Road, Coventry CV2 2DX, United Kingdom;2. Aparajit Orthopaedic and Maternity Nursing Home, 22, Near State Bank Of India, West High Court Road, Surendranagar, Nagpur 440015, India;3. Worcester Royal Hospital, Charles Hastings Way, Worcester WR5 1DD, United Kingdom;4. Droitwich Knee Clinic, 27 New Road, Bromsgrove, Worcestershire B60 2JL, United Kingdom |
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Abstract: | A simple and facile method for multiscale, in-plane patterning of graphene oxide and reduced graphene oxide (GO–rGO) was developed by region-specific reduction of graphene oxide (GO) under a mild irradiation. The UV-induced reduction of graphene oxide was monitored by various spectroscopic techniques, including optical absorption, X-ray photoelectron spectroscopy (XPS), Raman, and X-ray diffraction (XRD), while the resultant GO–rGO patterned film morphology was studied on optical microscope, scanning electron microscope (SEM), and atomic force microscope (AFM). Flexible symmetric and in-plane supercapacitors were fabricated from the GO–rGO patterned polyethylene terephthalate (PET) electrodes to show capacitances up to 141.2 F/g. |
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